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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
GM GLOBAL TECHNOLOGY OPERATIONS LLC	300 RENAISSANCE CENTER MAIL CODE 482-C24-A68 P O BOX 300 DETROIT MI 48092-2023

International Classification(s)

• B22D:CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY ....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Aase, Jan H	Oakland Township, US	38	867
Schroth, James G	Troy, US	86	1182
Sung, Shung H	Troy, US	7	51
Verbrugge, Mark W	Troy, US	178	3407

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
January 10, 2012	US,8091609,B2   US8091609B2	GRANTED PATENT AS SECOND PUBLICATION
July 09, 2009	US,20090176122,A1   US20090176122A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8091609

Method of forming casting with frictional damping insert

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